Lenze ECSCExxx - Manual (Page 63)

Safety instructions
Residual hazards
1
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63 EDKCSCE040 DE/EN/FR 3.0
1.2 Residual hazards
Protection of persons
ƒ Before working on the power supply module, check that no voltage is
applied to the power terminals, because
– the power terminals +UG, −UG, BR0 and BR1 remain live for at least 3
minutes after mains disconnection.
– because the power terminals +UG, −UG, BR0 and BR1 remain live when
the motor is stopped.
ƒ The operating temperature of the heatsink is > 70 °C:
– Direct skin contact with the heatsink results in burns.
ƒ The leakage current to PE is > 3.5 mA AC or > 10 mA DC.
– According to EN 61800−5−1, a fixed installation is required.
– The PE connection has to conform to EN 61800−5−1.
– Comply with further requirements of EN 61800−5−1 for high leakage
currents!
ƒ Operation of the power supply module with an earth−leakage circuit
breaker:
– The power supply modules are provided with an internal mains
rectifier. In the event of a short−circuit to frame, a non−pulsating DC
fault current can prevent the tripping of AC−sensitive or
pulse−current−sensitive earth−leakage circuit breakers and thus block
the protective function for all electrical equipment operated on these
earth−leakage circuit breakers.
– If a residual current device (RCD) is used as a protective means in the
case of direct or indirect contact, only a residual current device (RCD) of
type B may be used. Otherwise, another protective measure, such as
separation from the environment through double or reinforced
insulation or disconnection from the mains by means of a transformer
must be used.